Does anyone know anything about IR sauna's?? I saw and went inside one at the last 2 farm shows and of course they claim all these health benefits. To be honest, I'm pessimestic about there health benefits but would like one to help relax in warmth during the winters, especially my wife. They didn't seem too expensive and plug into a 110 outlet. the rep said they only cost something like 20-30 cents per 30 minute session. Does anyone have one?